AI model comparison
Inkling vs GPT-5.4 Mini
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
Thinking Machines
Inkling
Inkling is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 41B active parameters out of 975B total.
- Input / 1M
- $1
- Output / 1M
- $4.05
- Context
- 524K
OpenAI
GPT-5.4 Mini
GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads.
- Input / 1M
- $0.75
- Output / 1M
- $4.50
- Context
- 400K
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
GPT-5.4 Mini
1.1x cheaper for a typical chat
Higher intelligence score
Inkling
25 vs 24.1 on Artificial Analysis
Larger context window
Inkling
524K vs 400K tokens
Newer release
Inkling
Released July 17, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
GPT-5.4 Mini24.1Coding index
GPT-5.4 Mini56.1Agentic index
GPT-5.4 Mini17.9Pricing
Inkling vs GPT-5.4 Mini API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | GPT-5.4 Mini | |
|---|---|---|
| Input tokensPer 1M tokens | $1 | $0.75 |
| Output tokensPer 1M tokens | $4.05 | $4.50 |
| Cached input (read)Per 1M tokens | $0.17 | $0.08 |
| Cache writePer 1M tokens | Not available | Not available |
| Web searchPer request | Not available | $0.01 |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
GPT-5.4 Mini$3.75Coding task
30K in, 4K out
GPT-5.4 Mini$40.50$20.25 cachedLong document summary
150K in, 2K out
GPT-5.4 Mini$121.50$20.25 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | GPT-5.4 Mini | |
|---|---|---|
| Context window | 524K tokens | 400K tokens |
| Max output | 472K tokens | 128K tokens |
| Input types | Audio, Image, Text | File, Image, Text |
| Output types | Text | Text |
| Reasoning effort levels | Max, High, Medium, Low, Minimal, None | Extra high, High, Medium, Low, None |
| Default reasoning effort | High | Medium |
| Release date | July 17, 2026 | March 17, 2026 |
Features
Supported features
API features available for each model.
| Metric | GPT-5.4 Mini | |
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Not supported | Supported |
| JSON mode | Not supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Supported | Not supported |
| Stop sequences | Supported | Not supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
GPT-5.4 MiniView full model details- GPT-5.4 Mini vs DeepSeek V4 Flash 0423
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- GPT-5.4 Mini vs GPT-5.2-Codex
- GPT-5.4 Mini vs GLM 5 Turbo
- GPT-5.4 Mini vs Gemini 3.5 Flash Lite
- GPT-5.4 Mini vs Kimi K2.7 Code
- GPT-5.4 Mini vs Grok 4.3
- GPT-5.4 Mini vs GPT-5.1
- GPT-5.4 Mini vs GPT-5.1-Codex
- GPT-5.4 Mini vs GPT-5 Mini
- GPT-5.4 Mini vs GLM 5V Turbo
- GPT-5.4 Mini vs GPT-5
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- GPT-5.4 Mini vs Claude Opus 4.1
- GPT-5.4 Mini vs o3 Pro
- GPT-5.4 Mini vs Qwen3.5 397B A17B
- GPT-5.4 Mini vs GPT-5.1-Codex-Mini
- GPT-5.4 Mini vs o3
- GPT-5.4 Mini vs o4 Mini
Our take
GPT-5.4 Mini is 1.1x cheaper for a typical chat. Inkling scores higher on the Artificial Analysis Intelligence Index (25 vs 24.1). Inkling has the larger context window (524K vs 400K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Inkling or GPT-5.4 Mini cheaper?
GPT-5.4 Mini is cheaper for a typical chat (2K input tokens and 500 output tokens). GPT-5.4 Mini costs $0.75 per 1M input tokens and $4.50 per 1M output tokens, while Inkling costs $1 per 1M input tokens and $4.05 per 1M output tokens.
Which has a bigger context window, Inkling or GPT-5.4 Mini?
Inkling supports up to 524K tokens of context, compared with 400K for GPT-5.4 Mini.
Is Inkling smarter than GPT-5.4 Mini?
On the Artificial Analysis Intelligence Index, Inkling scores 25 and GPT-5.4 Mini scores 24.1, putting Inkling ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Inkling and GPT-5.4 Mini at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Inkling and GPT-5.4 Mini answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Inkling and GPT-5.4 Mini at the same time. Compare the answers side by side and keep the best one.